New Strategic Partnership With Quintauris
To advance Safety-Critical RISC-V for Automotive
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New Source Code Evaluation Packages
Optimized for TI IWR68xx and AWR68xx radar sensors
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Winners Of A King's Award For Enterprise 2025
WHIS has been recognised in the International Trade category
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WHIS Joins the SOAFEE Initiative
Joining the SOAFEE Special Interest Group allows us to collaborate with industry leaders to shape the future of automotive safety.
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New Binary Evaluations on TI Processors
Experience the future of automotive technology
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SAFERTOS® CORE
For systems that need to consider safety, but don’t require certification.
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Truly Independent RTOS Vendor
As an independent RTOS vendor we are able to partner closely with all silicon vendors, giving you a highly optimised product whichever processor you choose.
Supported Processors
SAFERTOS® for Medical
Designed to support the development and certification of medical devices.
IEC 62304 Class C, FDA 510(k) Class III
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SAFERTOS® for Industrial Devices
Pre-emptive scheduling for IEC 61508 SIL 3, available pre-certified by TÜV SÜD.
Find out MoreSecure RTOS for Safety Critical Applications
WITTENSTEIN high integrity systems: experts in embedded RTOS and Middleware technology with a specialisation in safety certified software. Supplying advanced RTOS and Middleware components across a broad range of market sectors and applications, from basic embedded designs, up to complex safety systems demanding the highest levels of certification. Contact us today.
SAFERTOS®
Highly deterministic and reliable pre-certified safety RTOS, for embedded systems requiring certification; Supports wide range of standards such as IEC 61508, ISO 26262, FDA 510K and more.
OPENRTOS®
OPENRTOS® provides a commercial license for Amazon FreeRTOS. This includes a license for the FreeRTOS kernel as well as, if needed, the additional software libraries that make up Amazon FreeRTOS.
Enhanced Security Module
For the highest security-critical environments, WHIS offers SAFERTOS® with the Enhanced Security Module (ESM) to reinforce and strengthen the existing security of our RTOS.
Real Time Operating System (RTOS) Specialists
WITTENSTEIN high integrity systems use an ISO 9001:2015 Quality Management System, certified by Lloyds Register LRQA UK applicable to:
Design, development, installation and support of high integrity systems and software for medical aviation and industrial applications.
Support
Our team of development engineers are here to help resolve any questions you might have about our products. First year support included free as standard.
Training
Become a competent and informed user of our RTOS and middleware components by attending one of our training courses.
Consultancy
Benefit from our knowledge and experience to help optimise designs, improve your design processes and achieve certification faster.
Our Partners
Below are some of our partners. View our partners page to see the full list.
SAFERTOS® Plugins
Add greater safety and security to your SAFERTOS® applications with these safety plugins, supplied with a certification pack to IEC 61508.
SAFEXchange
Securely share safety critical data between processors and cores across black channel communication buses.
SAFECRC Checker
Guards against corruption and malicious attack by confirming the correctness of your program memory.
SAFECheckpoints
A sophisticated task monitor that ensures the scheduling of tasks is occurring as intended.
Middleware
Responsive, feature rich commercial grade Middleware solutions available tightly integrated with our RTOS products.
Networking
Responsive, compact and robust networking stack specifically designed for use with our RTOS products.
IoT
WHIS IoT solutions utilise Amazon FreeRTOS IoT software components, integrated with our renowned RTOS, OPENRTOS® or SAFERTOS®.
Latest News
Securing Embedded Devices: A Multi-Layered Approach with SAFERTOS® and the ESM
Posted: September 18, 2025
